When you equip coilovers onto a an EDC car - your car throws an error since you've removed the OEM shocks. The "EDC Module" is basically an electronic unit, built by KW, that stops the car from throwing the error.

When you equip coilovers onto a an EDC car - your car throws an error since you've removed the OEM shocks. The "EDC Module" is basically an electronic unit, built by KW, that stops the car from throwing the error.